/*
 * This file is part of Spoutcraft (http://wiki.getspout.org/).
 * 
 * Spoutcraft is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Spoutcraft is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.getspout.spout.gui;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import org.getspout.spout.client.SpoutClient;

import net.minecraft.src.GuiButton;
public class GenericSlider extends GenericControl implements Slider {

	protected float slider = 0.5f;
	private CustomGuiSlider sliderControl = null;
	public GenericSlider() {
		
	}
	
	@Override
	public int getNumBytes() {
		return super.getNumBytes() + 4;
	}
	
	public int getVersion() {
		return super.getVersion() + 0;
	}

	@Override
	public void readData(DataInputStream input) throws IOException {
		super.readData(input);
		setSliderPosition(input.readFloat());
	}

	@Override
	public void writeData(DataOutputStream output) throws IOException {
		super.writeData(output);
		output.writeFloat(getSliderPosition());
	}

	@Override
	public float getSliderPosition() {
		return slider;
	}

	@Override
	public Slider setSliderPosition(float value) {
		if (value > 1f) {
			value = 1f;
		}
		else if (value < 0f) {
			value = 0f;
		}
		slider = value;
		return this;
	}

	
	@Override
	public double getScreenX() {
		return super.getScreenX();
	}
	
	@Override
	public double getScreenY() {
		return super.getScreenY();
	}
	
	@Override
	public WidgetType getType() {
		return WidgetType.Slider;
	}
	
	protected void setup(int x, int y) {
		this.x = x;
		this.y = y;
	}
	private int x;
	private int y;

	@Override
	public void render() {
		if (sliderControl == null) {
			boolean success = false;
			if (SpoutClient.getHandle().currentScreen instanceof CustomScreen) {
				CustomScreen popup = (CustomScreen)SpoutClient.getHandle().currentScreen;
				for (GuiButton control : popup.getControlList()) {
					if (control instanceof CustomGuiSlider) {
						if (control.equals(this)) {
							sliderControl = (CustomGuiSlider)control;
							sliderControl.updateWidget(this);
							success = true;
							break;
						}
					}
				}
				if (!success) {
					sliderControl = new CustomGuiSlider(getScreen(), this);
					popup.getControlList().add(sliderControl);
				}
			}
		}
		sliderControl.drawButton(SpoutClient.getHandle(), x, y);
	}

}